Table 2 Physical parameters of air.

From: Numerical study on the impact of wall structure on the thermal performance of double-channel porous solar wall

Temperature (K)

Density (kg/m3)

Specific heat (J/kg·K)

Coefficient of thermal conductivity (W/m·K)

273.15

1.293

1005

0.0244

283.15

1.247

1005

0.0251

293.15

2.205

1005

0.0258

303.15

1.165

1005

0.0267

313.15

1.128

1005

0.0275

323.15

1.093

1005

0.0282

333.15

1.060

1005

0.0289

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